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❶ What is the concept of blockchain? Read it in three minutes!

On October 25, 2019, Xinwen Broadcast sent a very important signal: the country must vigorously develop blockchain. After that, blockchain has become an Internet celebrity, and the figure of "blockchain" is floating in the streets and alleys. In fact, many technology companies have already deployed blockchain technology.

Although blockchain is very popular, many people do not know much about blockchain.

What is blockchain?

Let’s first take a look at how Du Niang explained it. Network display: Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithms.

Why is blockchain called blockchain?

The blockchain is linked by blocks one by one, and the blocks are storage units one by one, which record the communication information of each block node. The blocks are much like the records of the database. Writing data every time creates a block. With the expansion of information exchange, one block continues with another, and the result is called a blockchain.

What are the characteristics of blockchain?

Blockchain mainly has the following characteristics:

1. Decentralization: In the blockchain system, every node has equal rights. and obligations, there is no central control here. Decentralization has well established trust relationships with each other. Although there is no central management organization, people can collaborate with each other and trust each other. This mainly applies blockchain distributed ledger technology.

2. Openness: Blockchain data is open to everyone. Except for some encrypted information that is not open, everyone can check the data here.

3. Independence: The entire blockchain system does not rely on other third parties. All nodes can automatically and securely verify and exchange data within the system without any human intervention.

4. Security: Blockchain has a certain degree of security and cannot be tampered with. Because everyone in the blockchain system has the same ledger, if someone wants to tamper with it, it is possible to forge a non-existent record only if they control more than 51% of the accounting nodes. Of course, this is basically impossible. This is mainly due to the core technology of the blockchain: the consensus mechanism. The consensus mechanism has the characteristics of "the minority obeys the majority" and "everyone is equal".

5. Anonymity: Many people think that if the blockchain is so open and transparent, will we lose privacy? In fact, no, although the transaction information in the blockchain is open and transparent, the identity information of the account is encrypted and can only be accessed with authorization.

Now let me tell you a story to help you better understand the blockchain.

There are three people in the family, mom, dad, older brother and younger brother. Last year, my father was in charge of the family's account books. He was responsible for all the family's income and expenses alone.

However, on the day of Double Eleven, my mother, who has always been frugal, wanted to buy herself a beautiful piece of clothing on a certain online store. When she checked the account book, she found something was wrong. It stands to reason that except for some money deposited in banks and financial management, the whereabouts of the daily consumption money at home are all in this account book, but no matter how you look at it, it is wrong. Some consumption is clearly not recorded, but is recorded.

Later, my father took the initiative to confess that he couldn’t help but buy a pack of cigarettes.

Later, my mother changed her strategy and the whole family kept accounts. Everyone recorded their monthly consumption expenditure in their own account books. Whenever there was a transaction or consumption at home, my mother would shout, "Book it," and everyone would record the transaction in their own books. This is the decentralized accounting model, where everyone is the center and everyone has a ledger.

The previous accounting model for dad was centralized accounting. If dad wanted to do something alone, it would be difficult for anyone to see it. The decentralized accounting model has solved the problem of centralization very well. The disadvantage of bookkeeping is that it is very difficult for dad to tamper with the books.

For example, if my father wants to take some money from the ledger and secretly buy cigarettes, the amount of money is limited, and if he wants to take the money, he has to change the ledger, but he only tampered with his own ledger. No, he had to change the accounts of three people including himself. And this is undoubtedly more difficult than reaching the sky.

So, many times my father had the idea of ​​smoking, but he had no choice but to give up the idea due to the current situation.

Are blockchain and Bitcoin the same thing?

In fact, blockchain and Bitcoin are not the same thing. It is just the underlying technology of Bitcoin. Bitcoin is the first digital currency applied by blockchain.

In 2008, Satoshi Nakamoto first proposed the concept of blockchain. In the following years, it became a core component of the electronic currency Bitcoin, serving as a public account book for all transactions. Blockchain was first applied to Bitcoin.

The origin of blockchain is to solve the problem of trust, and one of the most successful applications of blockchain is digital currency. Bitcoin is arguably the most successful application of blockchain so far.

What are the applications of blockchain?

The application of blockchain is actually very wide. In addition to digital currency, the future applications of Bitcoin are still very extensive. Blockchain technology has been widely used in different industries. Such as product traceability, copyright protection andTransactions, payment and settlement, Internet of Things, digital marketing, medical care, etc., promote different industries to quickly enter the "blockchain+" era.

1. Payment and clearing: Blockchain can abandon the role of transit banks, realize point-to-point payment, reduce transit fees, and accelerate fund utilization.

2. Product traceability: For example, if we buy a piece of clothing on a certain store, we can see the past and present life of this piece of clothing.

3. Securities trading: Traditional securities trading requires the coordination of four major institutions, which is inefficient and costly. Blockchain technology can independently complete one-stop services.

4. Supply chain: Introducing blockchain technology into the supply chain system, synchronizing information within the system can control all links, better complete division of labor and collaboration, and facilitate subsequent accountability.

5. Intellectual property rights: With copyright on the chain, our photographic works, musical works, literary works, etc. will become our information, and the ownership of the information will be confirmed and become our property.

❷ The authenticity of the Five Elements Blockchain

In terms of appearance, the entire outer ring of the Five Elements Coin is golden. It is said to be made of pure gold. There is an inscription on the Five Elements Coin. A portrait of a man, with the words "Zhang Jian, Five Elements Coin" underneath the portrait, and a set of numbers below.
Zhejiang Hongxin Yulong According to coin buyers, the return on investment is frighteningly high. They claim to be able to kill Buffett instantly and look down on real estate speculators. I want to ask what is the mystery of this Five Elements Coin. What the promoter said is incredible: Zhang Jian, the issuer of the Five Elements Coin, is the richest man in the world. In order to prevent the outflow of gold, the country entrusted Zhang Jian with 5,000 tons of gold to create a limited number of gold coins with his image. Behind the Five Elements Coin is digital currency, which will eventually replace paper money.
Digital Currency is an alternative currency in the form of electronic currency. It cannot be completely equated with virtual currency in the virtual world, because it is often used for real transactions of goods and services, and is not limited to virtual spaces such as online games. Common digital currencies include Bitcoin, BitShares, etc. There are currently thousands of digital currencies issued around the world.

❸ What is blockchain

Blockchain is a term in the field of information technology. In essence, it is a shared database, data or information stored in it , with characteristics such as “unforgeable”, “leaving traces throughout the entire process”, “traceable”, “open and transparent” and “collectively maintained”.

On January 10, 2019, the National Internet Information Reform Office issued the "Blockchain Information Service Management Regulations". On December 2, 2019, the word was selected into the top ten buzzwords of 2019 by "Yi Wen Qi Zi".

❹ What fields are blockchain suitable for?

The first one is the information security industry.
Second, bill business field
Third, payment and settlement business.
Fourth, identity/account authentication business.
Fifth, each node participating in the maintenance of the equity proof blockchain can obtain a complete data record. Using the characteristics of reliable and collective maintenance of the blockchain, the rights of the owners of equity can be confirmed.
Blockchain technology is really powerful. With the advancement of the times, this technology may change the development direction and trend of the financial industry, and because the blockchain technology itself has large capacity, high-speed computing, security, and convenience And other characteristics have laid a strong foundation for the advancement and popularization of technology.

❺ Five major sectors of blockchain layout

Five major sectors of blockchain layout

1. Mine

1. Mining machine manufacturers

2. Mining machine sellers

3. Mining farms

In the future, mining machine manufacturing and mining farms will move towards two extremes direction of development. One is the large and professional super mine route; the other is the small and characteristic small workshop route.

2. Platform

1. Centralized exchange

2. Decentralized exchange

Personally Looking forward to the emergence of more complete decentralized exchanges.

3. Media Information

The threshold for media participation is low and competition is becoming increasingly fierce.

4. Capital Venture Capital

In the future, professional blockchain asset management service platforms may become an important part of Internet finance.

5. Technical Team

Technology is productivity.

❻ What are the products with practical application of blockchain

Blockchain is the core supporting technology of the digital cryptocurrency system represented by Bitcoin. The core advantage of blockchain technology is decentralization. It can realize point-to-point transactions based on decentralized credit in a distributed system where nodes do not need to trust each other by using data encryption, timestamps, distributed consensus and economic incentives. Coordination and collaboration thus provide solutions to the common problems of high cost, low efficiency and insecure data storage in centralized institutions.
The application fields of blockchain include digital currency, certificates, finance, anti-counterfeiting and traceability, privacy protection, supply chain, entertainment, etc. With the popularity of blockchain and Bitcoin, many related top domain names have been registered. , which has had a relatively large impact on the domain name industry.

❼ What are the current applications of blockchain?

What is blockchain technology? People in each industry have different understandings, and relevant explanations are gradually emerging due to more and more real-life applications. With the popularization of this blockchain technology, the related results are getting bigger and bigger. usIf you want to understand this technology, you need to have an in-depth understanding of reality.

my country's current economic and social credit environment is still relatively weak and credit costs are high. Blockchain technology proposes a set of lower-cost "trust" solutions to reduce the credit costs of the whole society, which is very important for promoting our country. The development of credit economy is of great significance. Although this technological innovation in the field of Internet finance is not yet mature, many large banks in the world have rushed to invest resources in research and development, which should attract the attention of my country's banking industry and regulatory authorities.
(1) As for commercial banks, they should prepare technology and talent reserves and actively participate in the formulation of international standards.
In order to prevent digital currency risks, my country’s commercial banks are currently unable to conduct digital currency transactions, and the research on technological innovation behind digital currencies is also lagging behind. This is slightly asymmetrical with my country’s private enthusiasm for blockchain research and development. . Nowadays, the development of emerging models of disintermediation such as blockchain technology and P2P is gradually moving from concept to application, driven by the joint innovation of large global financial institutions. my country's major banks should also pay close attention to the latest innovation trends of international peers and join the research as soon as possible. , develop the ranks of blockchain products and promptly adjust development strategies to adapt to the business operation model of Internet finance under the new situation. First, it can establish a research and development laboratory or cooperate with financial technology companies. In addition to developing different blockchain application scenarios, it can also be combined with national conditions and inclusive finance, such as studying how to use blockchain technology to achieve low-cost fund transfer payments in economically underdeveloped areas and improve financial services in these areas. The second is to actively participate in the formulation of international standards and agreements, strive for the right to speak, and avoid being a passive follower.
(2) Regulatory agencies also need to continue to pay attention to the development of the latest Internet technology and be prepared to respond.
First, the "decentralization" brought by blockchain technology does not mean that centralized organizations are not needed in economic operations. Blockchain technology hopes to break privileges and human manipulation and allow computer algorithms to achieve "free credit notarization." But from a practical point of view, theoretical deductions cannot be completely mapped to real life. For example, due to the lack of supervision, digital currency transactions such as Bitcoin face high risks of speculation and money laundering. Therefore, if blockchain technology wants to become a new channel for capital circulation, it needs supervision and implementation standards to protect the interests of all parties in the market. In this regard, regulatory authorities should formulate relevant standards and specifications, especially operating specifications, and use their power to ensure that financial innovative products are used rationally; at the same time, they should also improve the protection of consumer rights and interests, strengthen education on the protection of financial consumer rights and interests, and improve consumer awareness. Risk prevention awareness. In short, even in a "decentralized" business system, centralized departments are needed to provide normative and guarantee support.
Second, regulatory authorities must be prepared to respond to possible changes in regulatory methods. At present, new technologies have a profound impact on the monetary systems of various countries, and the traditional policy framework and means of regulating economic and financial affairs are increasingly unable to keep up with the changes in the situation. Regulatory authorities should keep pace with the times and make full use of the convenience of financial technology to improve supervisionmethods and improve regulatory measures. For example, if securities lending, repurchases, and margin trading can all be traded through a transparent and open blockchain in the future, then regulatory authorities can consider using this public ledger information to monitor systemic risks in the market, which is not only efficient but also reliable.
Third, regulatory agencies can proactively embrace new technologies in Internet finance. Central banks can respond in two ways to a financial landscape transformed by technology: monitor and respond to developments or take a proactive approach. U.S. Securities and Exchange Commission Commissioner Kara Stein believes that regulatory agencies need to be in a leading position to take advantage of the advantages of blockchain technology and respond quickly to its potential weaknesses. The Bank of England's research further stated that the central bank may consider issuing blockchain-based digital currencies in the future, which if done properly can increase financial stability.

Blockchain was first launched and recognized by people to support the formation and circulation of Bitcoin. However, unlike the controversial Bitcoin, the introduction of blockchain technology has adapted to the development of the Internet. After entering a new era of mobile Internet, Internet of Everything, and anytime Internet, a large number of online transactions are in urgent need of party identity verification and transaction confirmation. , greatly improve the efficiency of transaction settlement and clearing, and ensure the urgent needs of funds and information security. Therefore, blockchain technology has received increasing attention and attention, and attracted more and more people to explore, innovate and apply. .
By the end of 2015, more than 20 of the world's top financial institutions have begun to explore the application of blockchain technology at the financial level. More and more people believe that blockchain technology uses new encryption authentication technology and decentralized mechanisms to maintain a complete distributed, non-tamperable, continuous ledger database, which allows participants in the blockchain to The security of funds and information is ensured through a unified ledger system without the need for mutual recognition and trust. This is of extremely great significance to financial institutions and financial innovation.
First, blockchain technology can reduce trust risks.
Blockchain technology is open source and transparent, and system participants can know the operating rules of the system. Under blockchain technology, since each data node can verify the authenticity and integrity of the ledger content and ledger construction history, it ensures that the transaction history is reliable and has not been tampered with, which is equivalent to improving the accountability of the system. , reducing the trust risk of the system.

Second, from an enterprise perspective, Bubi blockchain has been used in equity, supply chain, points and other fields, and is conducting trials and application tests with exchanges and banks. Bubi Blockchain focuses on the innovation of blockchain technology and products. It already possesses a number of core technologies and has developed its own blockchain service platform. And many blockchain innovative and entrepreneurial companies are constantly emerging.

Third, blockchain can drive the birth of new business models.
The characteristics of blockchain technology enable it to realize some business models that are difficult to achieve in a centralized model. For example, in the Internet of Things industry, some organizations have proposed using blockchain technology to manage the identity, payment and maintenance tasks of tens of billions of IoT devices. Using blockchain technology, IoT device manufacturers can greatly extend the life cycle of products and reduce the cost of IoT maintenance.
Fourth, blockchain technology has a flexible architecture.
Based on different application scenarios and user needs, blockchain technology can be divided into several types: public chain, private chain and alliance chain, which can be selected according to the actual use of the organization.
Fifth, blockchain technology is a beneficial tool for realizing shared finance.
The essence of shared finance is to achieve the purpose of optimizing the allocation of financial resources by reducing the asymmetry of financial information, and through strict third-party certification and supervision mechanisms to ensure the implementation of the rights and interests of both parties to the transaction and facilitate the completion of the transaction. By using blockchain technology, financial information and financial value can be more strictly protected, enabling more efficient and lower-cost flows, thereby realizing the sharing of value and information.
Sixth, the openness of blockchain technology encourages innovation and collaboration.
Through the openness and collaboration of source code, blockchain technology can promote collaboration among different developers, researchers, and institutions and learn from each other's strengths to achieve more efficient and safer solutions. In recent years, many overseas financial institutions and commercial institutions have tried to use blockchain technology to improve business models. In China, although this technology has not yet been widely recognized and applied, it has begun to attract more and more widespread attention. Attention, its influence is rapidly increasing. Now blockchain technology has been regarded as one of the basic protocols for the next generation of global credit certification and value Internet. The importance of blockchain technology to my country's financial industry and financial system cannot be ignored.
Of course, we must know that the development of blockchain technology is still in its early stages globally, and various technical solutions, application scenarios and business models need to be further explored and improved. Especially in our country, blockchain is a brand-new concept and theory, and people's cognition, research and practice have just begun. If we want to overtake in this field, catch up with the advanced, and lead the world, we still need enough attention. More investment requires the active investment and positive interaction of theoretical researchers, network technicians, financial practitioners, and regulatory authorities, and the courage to explore and innovate.

What is blockchain technology? People will definitely understand more and more about such technology, and it will play an increasingly important role in reality, and will be supported by many institutions, thus bringing the popularization of blockchain into a new application stage in reality.